Speed-governor.



V. .I. DIEFENDERFER.

SPEED GOVERNOR.

APPLICATION FILED SEPT. 14, 1914.

THE NORRIS PETERS CO-. PHOm-LITHKI. WASHINGTDN, D, C

V. J. DIEFENDERFER.

' SPEED GOVERNOR. I APPLICATION FILED SEPT. 14, 1914.

1,142,803. PatentedJune 15, 1915.

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VICTOR J. DIEFENDERFEB, OF SOUTH BETHLEHEM, PENNSYLVANIA, ASSIGNOR TOVICTOR ENGINEERING COMPANY, LIMITED, 0F ALLEN'I'OWN, PENNSYLVANIA.

SPEED-GOVERNOR.

Specification of Letters Patent. Patented J une 15, 1915,

Application filed September 14, 1914. Serial No. 861,572.

To all whom it may concern Be it known that I, Vroron J. DIEFEN- DERFER,a citizen of the Jnited States, residing in South Bethlehem, in thecounty of Northampton and State of Pennsylvania, have invented certainnew and useful Improvements in Speed-Governors, of which the followingis a specification.

This invention relates to governors for regulating the speed of steamengines and other prime movers and machines, the speed of which may varyand which require mechanism for so controlling them as to maintain asnearly as possible a uniform speed.

It relates particularly to governors in which balls or weights containedwithin a casing are pivotally connected with an upright shaft and arerotated with the shaft and casing, while at the same time moving outwardfrom the axis of the shaft and rising while in contact with the casingcausing the latter to rise and fall, and by suitable connections, tooperate mechanism which controls the action of the engine valves orother suitable devices for regulating the engine speed.

According to this invention I provide a casing within which arecontained centrifugally operated balls in contact with the upper andlower walls of the casing and connected in a new way to a verticalgovernor shaft passing through the casing by arms of such constructionas to allow the balls to rise and fall to the desired extent to give therequired movement to the controlling mechanism.

My improvements are shown in the accompanying drawings, in which,

Figure 1 shows a vertical central section through a speed governorembodying my invention with some parts shown in elevation. Fig. 2 is aview on an enlarged scale and in transverse section on the line 2-2 ofFig. 1. Fig. 8 is a top plan view on an enlarged scale with the top ofthe casing removed. Fig. 4 shows a transverse section on the line 4ll ofFig. 1. Fig. 5 is a perspective view of one of the end members of one ofthe governor weights. Fig. 6 is a perspective view of one of thegovernor arms. Fig. 7 is a perspective View of the middle member of oneof the governor weights. Fig. 8 shows an end elevation thereof.

The casing comprises a body portion A and a removable top or cover Aheld in place by screws w'. The body portion A is circular in crosssection having a bottom wall a and a vertical side wall o The caslng isformed with a boss or hub a through which extends the governor shaft Band to which it is connected at s' in such manner that it rotatestherewith, but may move vertically thereon. The top A is provided with adome a having acavity or chamber a? to accommodate certain parts of themechanism hereinafter referred to. The upper end of the governor shaft13 extends through the dome a and is connected therewith by a featherand groove .9, as shown, so that the top A revolves with the shaft B butmay move vertically thereon.

Vithin the casing are arranged the governor balls or weights C. Thesemay be of any suitable construction, but are preferably made in sectionsas shown. I Each governor weight, as illustrated, comprises a middlepart 0 and two side parts 0. The three parts 0, 0 are placed side byside by side and secured to arms D pivotally connected with the governorshaft B. Each weight is connected with the governor shaft by two linksD, the upper ends of'which are pivotally connected with a trunnion blockE bolted to the shaft B at e. The block E is formed with trunnions f andthe arms D are held in place on the trunnions by washers f and bolts orscrews P. The weight sections are preferably given the shape shown inthe drawings and are grooved at o to receive the lower ends of the armsD. The end parts 0 have their outer portions curved as shown tocorrespond with the curvature of the casing and the middle part c hasits inner part cut away as illustrated to enable it to come close to thegovernor shaft B when the governor is at rest or is running at lowspeed. The parts 0, 0 are held in place by bolts G, which also passthrough the outer ends of the arms D. The governor arms D are each bentat d to form an inner part cl which, when the governor is at rest, issubstantially parallel with the axis of the shaft B and an outer part (Zwhich is inclined relatively to the inner part. This constructionis ofimportance because when the weights are moved outward and upward bycentrifugal force they are enabled to rise to a greater extent beforethe arms D come in contact with the top of the casing and thus a wider.range of movement is afforded. If the arms were straight or radial theywould soon come in contact with the casing and the range of movementwould be thus limited.

prime mover in any suitable way.

The boss a of the casing carries a sleeve nut L and a flanged rlng K.The nut is provided with a flange Z and between said flange and the topof the sleeve nut is interposed a collar T. The ring K and nut L revolvewith the casing, but the collar T does not revolve therewith but ispivotally connected at m with levers M jointed to a bracket N attachedto the standard G and also provided with means 0 for connecting themwith the parts to be governed. The construction is such that as thecasing rises and falls corresponding movements will be given to thelevers M and to the connecting means 0.

In order to provide means for adjusting the governor when speedvariation is desired, 1 may provide a spring P which surrounds thestandard H and rests on a collar Q surrounding the standard andconnected by links H with a collar T. The standard is threaded as shownat cl and receives anad justing nut S by means of which the tension ofthe spring may be varied and the sensitiveness of the governor adjusted.I would say, however, that I do not herein claim the special mechanismshown for communicating power to the governor shaft or of adjusting thegovernor, as my invention, so far as herein claimed, relates to themanner of arranging and operating the governor weights or balls withinthe casing.

I claim as my invention:

1. A speed governor, comprising a vertical driven shaft, a casingmounted to move veri,142,8oe

tically thereon and to revolve therewith, governor weights confinedwithin the casing on opposite sides ofthe shaft and engaging the innersurface of the top wall of said casing, and swinging arms pivotallyconnected with the weights and pivotally connected with the shaft in aplane above the inneri'surface of the top wall ofthe casing engaged bythe weights.

2. A speed governor, comprising a vertical driven shaft, a casingmounted to move vertically thereon and to revolve therewith and the topof which is dome-shaped and provided with a chamber, governor-weightsconfined within the casing on opposite sides of the shafts and engagingat all times the inner surface of the top wall of the casing, andswinging arms pivotally connected with the shaft in said chamber abovethe inner surface of the top wall of the casing, and also pivoted tosaid weights for the purpose specified.

3. A speed governor, comprising a vertical driven shaft, a casingmounted to move vertically thereon and to revolve therewith, governorweights within the casing on opposite sides of the shaft and engagingthe inner surface of the top wall thereof, and swinging arms pivotallyconnected with the shaft above said inner surface, said arms havinginner portions connected with the shaft and outer portions connectedwith the weights arranged at an angle to said inner portions.

4.,A speed governor, comprising a vertical driven shaft, a casingmounted to move vertically thereon and to revolve therewith, governorweights made in sections within the casing on opposite sides of theshaft and engaging the top wall of said casing, and swinging armspivotally connected with the shaft and secured between the sections ofthe weights.

In testimony whereof, I have hereunto subscribed my name.

VICTOR J. ninrnnnnnrna.

Witnesses:

H. J. HARTzoe, S. W. CHILEs.

Gopiea of this patent may be obtained for five cents each, by addressingthe Commissioner of Fatents, Washington, D. 0.

